ABB DSTC175 57310001-KN

1. Basic Information

• Model: DSTC175
• Part Number: 57310001-KN
• Brand: ABB
• Type: Profibus DP Termination Unit / Bus Terminator
• Compatible Systems: ABB Advant OCS, Advant Master, AC 400 Series DCS
• Application: Profibus DP communication network termination
• Warranty: 12 months
• Certifications: CE, RoHS compliant

2. Technical Specifications

• Power Supply: 24 V DC
• Termination Resistance: 120 Ω (standard for Profibus DP)
• Operating Temperature: -40 °C ~ +70 °C
• Relative Humidity: 5% ~ 95% (non-condensing)
• Protection Degree: IP20
• Dimensions: 75 × 35 × 110 mm
• Weight: Approx. 0.2 kg
• Mounting: DIN-rail mounting (35 mm standard)

3. Key Functions & Features

• Bus Signal Termination

  Provides standard 120 Ω termination to eliminate signal reflection, reduce noise, and ensure stable high-speed Profibus DP communication.

• Impedance Matching

  Matches electrical impedance at the physical end of the bus, preventing data corruption and communication failures in long-distance networks.

• High Industrial Reliability

  Wide temperature range, high EMC immunity, vibration-resistant, suitable for harsh industrial environments.

• Easy Installation & Maintenance

  Compact module, DIN‑rail mounted, plug‑and‑play, no configuration required.

• Status Indication

  Integrated LED indicators for power and communication status monitoring.

4. Typical Applications

• ABB Advant OCS / Master / AC400 DCS remote I/O stations
• Profibus DP fieldbus communication systems
• End-point termination in distributed I/O networks
• Power plants, petrochemical, metallurgy, cement, paper, water treatment

5. Interface & Installation

• Communication: Profibus DP connector (A/B lines)
• Power: 24 V DC terminal block
• Mounting: 35 mm DIN rail
• Function: Used only at the physical end of the Profibus DP bus segment

6. Important Notes

• Must be installed at the start and end terminals of each Profibus DP segment.
• Designed exclusively for ABB DCS and Profibus DP fieldbus systems.
• Not for use as an I/O module or communication converter.